1261results about How to "Adjustable tension" patented technology

An intervertebral connection system having a fabric-based conformable ligament is disclosed herein.

Methods and apparatus for a surgical retractor include a ring, a plurality of flexible straps connected to the ring, a patch of hook or loop material connected to each strap, a coordinating patch of hook or loop material connectable to the patient's skin or the surgical drape. The flexible straps of the surgical retractor may be frangibly connected together. LEDs molded into the distal end create a light source to illuminate the surgical site. The ring may take several forms including a flexible or adjustable ring and an inflatable bladder. The ring of the surgical retractor is inserted into the surgical incision, a patch of loop fastener is attached to the patient, a set of straps connected to the ring are pulled outward and the hook portion is applied to the loop portion to hold the incision open. The retractor is useable for thoracic and other types of surgery.

A storm protector (20) to be attachable over a window (21) or other opening of a building (22) includes a header (26), a bottom sill (25) and side frames (23, 24) extending between the ends of the header (26) and the sill (25). The header (26) carries a tube (53) which has one end of a curtain assembly (27) attached thereto. The curtain assembly (27)is biased by a spring (54) to be normally coiled on the tube (53), but the curtain assembly (27) may be manually moved along the frames (23, 24) to the sill (25) to cover the window opening (21). A bar (31) is formed at the other end of the curtain assembly (27), and the bar (31) carries a guide and lock assembly (110) which rides in and can engage at least one of the side frames (23, 24) to guide and selectively hold the curtain assembly (27) at any selected position along the side frames (23, 24). A tensioning assembly (32) is positioned in the header (26) and, without disassembling the protector (20), it may be accessed to adjust the tension of the spring (54). The header (26) includes a sealing surface (50), the sill (25) includes a sealing surface (105) and each side frame (23, 24) includes a sealing surface (89). A force upon the curtain assembly (27) causes it to engage the sealing surfaces (50, 89, 105) to provide a full perimeter seal around the window opening (21).

Devices and methods for applying tension to an area of skin, in particular for follicular unit removal and implant in a hair transplantation procedure are provided. The devices may include a frame with at least two skin contact members that hold to the skin. Also disclosed are various ways to apply a force displacing the skin contact members apart, thus creating tension in the skin therebetween. The devices and methods may incorporate suction that helps the skin contact members securely hold to the skin. Barbs or microbarbs also may be used to help secure the skin contact members to the skin. The frame may surround the skin area with tensile forces applied outward in multiple directions, or the frame may be a bifurcated pair of fingers that applies tension substantially uni-directionally. Adjusting members and indicators may be provided to control and display the magnitude of tensile force applied to skin. The tensioning devices and methods may be incorporated into a robotic hair transplantation system.

The invention relates to a continuous fiber fabric reinforced thermoplastic resin composite material and a production method thereof. The composite material is produced from continuous fiber through thermoplastic resin melting and impregnating, cooling and molding, with the thickness of 0.20mm-0.35mm, wherein the content of the continuous fiber reinforced fabric is 40wt%-65wt%, the continuous fiber fabric is uniformly spread out and subjected to tension adjustment and static electricity elimination, then enters thermoplastic resin for melting and impregnating, and finally is cooled in a cooling unit and wound and formed to obtain the continuous fiber fabric reinforced thermoplastic resin composite material. Compared with the prior art, the continuous fiber fabric reinforced thermoplastic resin composite material and the production method solve a series of problems caused by too high resin viscosity in the existing thermoplastic resin and fiber reinforcing process, such as complex equipment process, too high equipment cost, not environment-friendly technological operation process, dry gauze easily caused by poor impregnation and the like.

A powered personal utility vehicle having a quick-change body configuration with a mating tray assembly and a universal chassis is disclosed. The upper level of the mating tray houses electronics while the lower level engages with the universal chassis to form the personal utility vehicle. Reconfigurations are simplified with plug and play design electronics. Vehicle traction is increased through a specialized track and drive wheel design that improves contact between the between the surfaces allowing operation in multiple environments. The two-piece wheel design allows assembly of the inflatable drive molded balloon tire. Adjustment of inflation levels of the balloon tires controls track tension. Control is either manually programmed into the on board central processing unit, or via carrier signals. Semi and fully autonomous operation is disclosed. Advanced operator interaction functions using two-way real time video and audio are disclosed along with LED and GPS systems. The invention as disclosed is configurable for a range of uses, load capacities and sizes.

A prosthetic implant for partial resurfacing of the ulna at the distal radioulnar (DRU) joint which comprises a stem and an ulnar head. The combination of the anchoring stem and the head that is shaped and proportioned to replace only a portion of the distal ulnar head and the radial articulating surface and to interface with the resected ulna at a proximal stabilizing surface provides excellent stability in the completed implant. In the preferred embodiment, a pair of strategically located surfaces aligned at an obtuse angle provides the stabilizing surface arrangement. The provision of a set of such implants with different head and stem sizes allows a surgeon to best accommodate the physiology of a particular patient and locate a resurfaced head section offset from the canal center in order to provide a convex articular surface adjacent the radius which will allow the radius to smoothly pivot and translate around such resurfaced ulnar head during pivoting of the forearm.

A reinforced pallet (20) and method for making the same are disclosed. The pallet (20) includes a body (28) having a pair of laterally spaced apart edge portions (56) with a central span (60) extending therebetween. A flexible tensile member (26) extends between the edge portions (56) and generally beneath the central span (60). The tensile member (26) may be in the form of a mesh affixed between upper and lower decks (22,24) of the pallet (20). When the edge portions (56) of the pallet (20) are simply supported and a load is place atop the pallet (20), the central span (60) of the pallet (20) will vertically deflect in response to the load. The central span (60) will bear upon the tensile member (26) with the tensile member providing support against deflection. A method for retrofitting a pallet (200) includes adding a tensile member (210) to the pallet (200) to reduce the amount of deflection of the pallet (200) when simply supported in response to a load placed atop the pallet (200).

An endless track assembly that mounts to a wheeled vehicle. The assembly provides 1) a track suspension having fixed or adjustable, independently biased sets of idler wheels to vary the track contour without affecting track tension, 2) an eccentric bearing housing at a drive sprocket controls track tension, 3) a contoured peripheral edge at the drive sprocket prevents ice and mud buildup, 4) rubber-coated, plastic idler wheels facilitate track movement, 5) a multi-vehicle compatible adapter mounting plate accommodates a variety of vehicles, 6) a rotation limited torsion coupler and/or rotation limiting coupler arms prevent track contact with the vehicle, 7) a locking steering arm coupler prevents loss of steering control, 8) shaped track lugs and channels clear and direct debris away fromthe track suspension and drive assembly, and 9) a center, spring biased coupling suspension stabilizes and enhances the contour following and load handling capabilities in the center region of the track. The improved suspension particularly supports sets of idler wheels in pivotal relation to the track support frame and resiliently biases a pre-tensioned rocker arm that links adjacent suspension arms mounted to the adjoining idler wheels. Suspension arm movement induces expansion and contraction of tension springs coupled to the rocker arms to augments shape changes at the track contact surface to optimize traction and steering control.

A handle assembly for a power tool is described and includes a first substantially tubular body portion 210 which contains a first spring 212. A second body portion 216 is slidably mounted within first body portion 210 and contains a second spring 218. A third body portion 222 is also slidably mounted within first body portion 210. The biasing coefficient, or spring constant, of the first spring 212 is less than that of the second spring 218. The first, second and third body portions 210, 216 and 222, and first and second springs, 212 and 218, are all mounted coaxially on threaded bolt 224. In use the third body portion 222 moves within first body portion 210 in a direction towards end portion 214 and the first and softer spring 212 becomes compressed more rapidly than the second and harder spring 218. When the distance D¹ has reduced to zero, by compression of first spring 212, the rubber washer 230 engages end portion 220 of second body portion 216 and the biasing effect of first spring 212 is eliminated The biasing force of the harder second spring 218 acts alone up to a distance D².

An electronically controlled breast pump for generating cyclical suction includes a cumulative vacuum pump and a plurality of switches including at least an expression mode cycle time selection switch, a peak vacuum level selection switch, and a stimulation mode switch. A controller coupled to the cumulative vacuum pump controls the apparatus which optionally further includes a four-layer assembly of the various features, an adjustable safety valve, and/or a pump head with a groove traversing top dead center of the pump head.

Each side (11a) of a thin metal plate (11) is held with clamps (27). The thin metal plate (11) is pulled by the clamps (27), and tensile force by each clamp is adjusted to hold the thin metal plate (11) in a flat state without distortion and sagging. At the same time, a frame (13) is elastically deformed by pressing it, with a force having the same magnitude as the tensile force applied to the thin metal plate (11), in the opposite direction to the tensile force. Then, in this state the thin metal plate (11) is welded and fixed to the frame (13) by a spot welding machine (40). When the thin metal plate (11) and the frame (13) are freed, tensile force remaining in the plate (11) is cancelled by restoring force of the frame (13). This prevents the frame (13) from being pulled by the thin metal plate (11) and deformed, and the frame (13) can hold the thin metal plate (11) in a state without distortion and sagging.

A linear guide track functional pulley group for a bundle-like winding machine comprises a movable pulley used for guiding materials to be wound, and fixed pulleys which are arranged at two sides of the movable pulley; the movable pulley is arranged on a linear guide track and can reciprocate along the linear guide track; the movable pulley is connected with a displacement sensor connected with a control system; the control system controls the winding speed of the winding machine according to the displacement measured by the displacement sensor. The movable pulley is also connected with a forcing mechanism adopting any one from a spring, a cylinder or an oil cylinder, and the cylinder or the oil cylinder is connected with the control system. The linear guide track functional pulley group for the bundle-like winding machine is simple in structure, high in automation degree, safe and reliable in use, wide in application range, capable of fully meeting the demands of a production line and suitable for being promoted and used.

The invention discloses a vertical-type wire stranding machine of high-definition multimedia interface (HDMI) cables. The vertical-type wire stranding machine comprises a rack, a first wire core releasing mechanism, a second wire core releasing mechanism, a ground wire releasing mechanism, a wire stranding main machine, a first paper layer wrapping mechanism and a second paper layer wrapping mechanism; the first wire core releasing mechanism makes a wire core in the high-definition multimedia interface (HDMI) cable pass through a first tension control device and thereafter makes the wire core enter a wire concentrating board and a narrowing and modeling model; the second wire core releasing mechanism makes the other wire core in the high-definition multimedia interface (HDMI) cable pass through a second tension control device and makes the wire core enter the second wire concentrating board and the narrowing and modeling model; the ground wire releasing mechanism makes a ground wire in the high-definition multimedia interface (HDMI) cable pass through a third tension control device and thereafter enables the ground wire to enter the wire concentrating board and the narrowing and modeling model; the wire stranding main machine winds up two wire cores and one ground wire; the first paper layer wrapping mechanism wraps a first player of paper on the cable which is subjected to narrowing and modeling; and the second paper layer wrapping mechanism wraps a second layer of paper on the cable which is wrapped with the first layer of paper. The vertical-type wire stranding machine of the high-definition multimedia interface (HDMI) cable of the invention is advantageous in simple structure and high production efficiency, and can be applicable to completing wire stranding and wrapping processes of the high-definition multimedia interface (HDMI) cable.

A robotic arm comprises a plurality of articulated elements, and control means for controlling the position of various of the elements such that the arm may adopt serpentine shape for tip following movement. Means for measuring directly the relative positions of at least some of the elements are provided in order to calculate deviation from the theoretical shape, and apply corrections to the arm control means.

The invention discloses a double-side drape-proof ironing device with adjustable tensity for textile processing. The double-side drape-proof ironing device with adjustable tensity for textile processing comprises a base body, ironing rollers and a driving motor, wherein transmission rollers are arranged at the inner side of the base body through screw bolts; the upper ends of the transmission rollers are provided with a cloth body; the ironing rollers are arranged at the middle end inside the base body, and are connected with the cloth body; ventilation holes are formed in the outer surfaces of the ironing rollers; the driving motor is arranged at the inner surface of the lower end of the base body; and the output end of the driving motor is provided with a conveying belt. The double-sidedrape-proof ironing device with adjustable tensity for textile processing has the advantages that a user can realize the control on the support intensity of cloth by regulating the position of movingblocks for limiting positions; meanwhile, when moving, position limiting rollers can drive dust removal rollers to do synchronous downward displacement in an opposite direction; and the end parts of the cloth are further clamped in a staggered way, so that when the adjustable tensity is realized, the double-side drape-proof position limiting treatment is stably performed.

A new and unique highly adjustable stationary exercise bicycle is presented incorporating a number of features specifically designed for youthful stationary bicycle users. The improvements over the prior art include infinitely adjustable vertical and horizontal seat heights and handlebar heights which are secured in their positions by a quick release lever rather than the standard pop pins. Also included is a lubrication port that allows the surface between the friction member and the working wheel to be lubricated. An emergency brake for the working wheel as well as a quick way to disengage the working wheel from the pedals is provided. Special pedal cage brackets are placed around each pedal so that the youth's use of such an exercise bicycle is made much more safely. All of the above elements combine to make this stationary exercise bicycle safe for use by children or adolescents.

Described are implants and tools for use in treating pelvic conditions such as incontinence, including urinary incontinence in a male or female, for example an incontinence sling and delivery system that can include a sling implant and delivery tool system, wherein the implant can include a mesh sling and one or more anchors provided at or extending from a portion of the sling to facilitate tissue fixation; the delivery tool system can include at least a tunneler having a lumen, and an insertion tool; and wherein useful methods can involve inserting the tunneler through an incision and into a pelvic region of a patient, connecting the insertion tool to the sling, and inserting the sling into the tunneler to place the sling to provide tissue support.

A dispenser for applying tape from a roll of tape including a pair of side supports, a means for rotatably suspending the roll of tape between the side supports, and a means for applying a variable force upon the roll of tape to resist rotation of the roll of tape such that the tape may being stretched when it is wound about the object.